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Emergent magnetic behavior in the frustrated Yb3Ga5O12 garnet
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Sandberg, Lise Ørduk, Edberg, Richard, Bakke, Ingrid-Marie Berg, Pedersen, Kasper S., Hatnean, Monica Ciomaga, Balakrishnan, Geetha, Mangin-Thro, Lucile, Wildes, Andrew, Fåk, B., Ehlers, Georg, Sala, Gabriele, Henelius, Patrik, Lefmann, Kim and Deen, Pascale P. (2021) Emergent magnetic behavior in the frustrated Yb3Ga5O12 garnet. Physical Review B: Condensed matter and materials physics, 104 (6). 064425. doi:10.1103/PhysRevB.104.064425 ISSN 2469-9950.
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Official URL: http://dx.doi.org/10.1103/PhysRevB.104.064425
Abstract
We report neutron scattering, magnetic susceptibility and Monte Carlo theoretical analysis to verify the shortrange nature of the magnetic structure and spin-spin correlations in a Yb3Ga5O12 single crystal. The quantum spin state of Yb3+ in Yb3Ga5O12 is verified. The quantum spins organize into a short-ranged emergent director state for T < 0.6 K derived from anisotropy and near neighbor exchange. We derive the magnitude of the nearneighbor exchange interactions 0.6 < J1 < 0.7 K, J2 = 0.12 K and the magnitude of the dipolar exchange interaction, D, in the range 0.18 < D < 0.21 K. Certain aspects of the broad experimental dataset can be modeled using a J1D model with ferromagnetic near-neighbor spin-spin correlations while other aspects of the data can be accurately reproduced using a J1J2D model with antiferromagnetic near-neighbor spin-spin correlation. As such, although we do not quantify all the relevant exchange interactions, we nevertheless provide a strong basis for the understanding of the complex Hamiltonian required to fully describe the magnetic state of Yb3Ga5O12.
| Item Type: | Journal Article | ||||||||||||
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| Subjects: | Q Science > QC Physics | ||||||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
| Journal or Publication Title: | Physical Review B: Condensed matter and materials physics | ||||||||||||
| Publisher: | American Physical Society | ||||||||||||
| ISSN: | 2469-9950 | ||||||||||||
| Official Date: | August 2021 | ||||||||||||
| Dates: |
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| Volume: | 104 | ||||||||||||
| Number: | 6 | ||||||||||||
| Article Number: | 064425 | ||||||||||||
| DOI: | 10.1103/PhysRevB.104.064425 | ||||||||||||
| Status: | Peer Reviewed | ||||||||||||
| Publication Status: | Published | ||||||||||||
| Reuse Statement (publisher, data, author rights): | Copyright American Physical Society 2021. Lise Ørduk Sandberg, Richard Edberg, Ingrid-Marie Berg Bakke, Kasper S. Pedersen, Monica Ciomaga Hatnean, Geetha Balakrishnan, Lucile Mangin-Thro, Andrew Wildes, B. Fåk, Georg Ehlers, Gabriele Sala, Patrik Henelius, Kim Lefmann, and Pascale P. Deen. Phys. Rev. B 104, 064425 | ||||||||||||
| Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||
| Copyright Holders: | American Physical Society | ||||||||||||
| Date of first compliant deposit: | 14 October 2021 | ||||||||||||
| Date of first compliant Open Access: | 14 October 2021 | ||||||||||||
| Grant number: | EP/T005963/1 | ||||||||||||
| RIOXX Funder/Project Grant: |
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